

Later on when you successfully sign up on a different Lemmy instance just go into your new user’s profile settings again (exactly how you just did for https://lemm.ee/settings but it’ll be [YOUR-NEW-LEMMY-INSTANCE]/settings, in there under “Import/Export Settings” look for the Import section and there you can import the file you just exported.
PS - For a quick overview of Lemmy instances you can check out https://lemmyverse.net/?order=active&open=true and/or https://join-lemmy.org/instances
That’s a good tip, it’s a good idea to subscribe to a Lemmy instance that participates in Fediseer (IMO). It helps to keep spammy instances off your own instance hence lower spam posts overall.
A lot of spammers tend to spin up their own Lemmy instances just to spam the rest of the Fediverse, or they’ll create a ton of new accounts on an instance with lax admin/moderation to use for spam later.
You don’t even need to browse the Fediseer website directly, pretty much all Lemmy instances participating in Fediseer will have the “Guarantor” and “Endorsements” links in the sidebar of their homepage.